Giga-tronics 8003, Operation Manual

Page: 209 / 258

Remote Operation
Manual 20791, Rev. C, June 2001 3-67
3.3.29 Span Swept Frequency Source Mode Def. Cmd. Structure
SWPS
Syntax: SWPS [ us modifier]...[ us modifier]
Examples: (See page 3-66 in the SWPF command description for a complete programming example
of the UPD modifier.)
Send the following commands to modify both sweeper and analyzer frequencies to 2000
to 4000 MHz.
SWPS;cf 15000;st 1000;span 500;pl 15.5
SWP;UPD ON
SWPF;START 2000;STOP 4000
Send the following commands to modify only the analyzer frequency to 6000 to 8000 MHz
SWPF;UPD OFF
SWPF;START 6000;STOP 8000
Related Command:
SWP
Modifiers: This modifier defines a center frequency for the center/span swept frequency mode of
signal source. The query flag (‘?’) affixed to the center frequency modifier queries the
value of the center frequency. If set, the next time the 8003 is talk-addressed it will output
the value of the center frequency in MHZ. The format of the returned data is D.dddddd,
where D is zero to 6 digits and the assumed units are MHz.
Modifier name: CF, CF?
Modifier Syntax: CF[?] [ hs numerical value]
numerical value range: Dependent upon the signal source if the source is
supported on the 8003’s private bus. If not supported
then the range is 1 MHZ to 99 GHZ
Modifier Description: This modifier defines a span frequency for the center/
span swept frequency mode of signal source. The query
flag (‘?’) affixed to the span frequency modifier queries
the value of the span frequency. If set, the next time the
8003 is talk-addressed it will output the value of the
span frequency in MHZ. The format of the returned data
is D.dddddd, where D is zero to 6 digits and the
assumed units are MHZ.
Modifier name: SPAN, SPAN?
Modifier Syntax: SPAN[?] [ hs numerical value]
numerical value range: Dependent upon the signal source if the source is
supported on the 8003’s private bus. If not supported
then the range is 1 MHZ to 99 GHZ.
Modifier Description: This modifier defines a POWER LEVEL for the start/stop
swept frequency mode of signal source. The query flag
(‘?’) affixed to the power level modifier queries the value
of the power level. If set, the next time the 8003 is talk-
addressed it will output the value of the power level in